Mortar and concrete mixing machine.



I mi s'zgssoi I PATENTED MAY 15, 1906.

A, P. KOBHLER. MORTAR AND CONCRETE MIXING MACHINE.

APPLICATION FILED SEPT. 11. 1905.

WHNESSES: V L wvlya I my ALWIN rxonnrian, or J OPLIN, MISSOURI.

MORTAR AND CONCRETE MIXING MAEHENE Application filaQ September 11,

Specification of Letters Patent.

lfatented 15, 196%.

1905. Serial to. 277,932.

To (11.4 whom it may concern:

Be it knownthat I, ALWIN F. KoEnLER, of the city of Joplin, county of Jasper, and State of Missouri, have invented a new and useful Mortar and Concrete Mixing Machine, of which the following is a specification.

My invention relates to 'a machine for mixing mortar or concrete,first mixing dry, then, when the ingredients are thoroughly mixed, adding sufficient water to bring the mass to proper consistency for use.

Reference is to be had to the accompanying drawing,which forms a part of this specification.

The drawing is a sectional view longitudinally and vertically through the center of the machine.

In the drawing, A represents a hopper into which the materials to be mixed are placed and which converges at the bottom, entering the contracted end of the cylinder B.

B is the mixing barrel or cylinder, which is held in position and revolved by the spiderarms 0, fastened to B at one end and to hubs D at the other end. Hubs D are in turn fastened to haft E. This shaft E, which is hollow, rests within the journals F F on the framework G and is closed at one end. The other end is fitted with a stuffing-box H, which makes connection between the shaft and the water-supply pipe I.

As shown in the drawing, motion is imparted to shaft E and thence to cylinder B through the gear J pinion K, shaft L, and 3 5 pulley M. Shaft E for a portion of its length within the cylinder has a number of smal holes N, drilled from the outside into the space within,

The method of operation is as follows: The machine is first set with the hopper end slightly elevated, so that the material being mixed will travel toward and out at the other end. Water is admitted to interior of shaft E through the pipe I and stuffing-box'fH;

and

1 charged through the holes il power being applied to pulley M a revolving movement is iven. the mixing-cylinder. The materials to )e mixed now thrown into the hopper A, which conducts them into the contracted end of cylinder B. The move ment of this cylinder carries the mate art of the way up atone side the cylinder revolves, whence they fall back upon. the bottom, and since the cylinder is set in KI: in: clined position they work toward the lower end. Soon they reach a position w tl come within range of the spray of in the hollow shaft E, which completes the operation, dc ering the mortar at the discharge end ready for use.

Having thus fully described my what I desire to secure by l A concrete-mixing m combination of a statioi'iar hopper, a inder provided at its front end with top formed with a hole into which fits the lower end of said hopper; the rear end of said cyl. inder being entirely open for the discharge of the material; a supporting-frame; a tubular shaft journaled in said frame and. l" rear end closed and its fr with a gasket, the. front n within said cylinder being l e the rear half thereof within said cylinde" perforated; a water-supply pipe winch into said gasket; driving mechanism for rotating said shaft; and spiders fast to said shaft and the inside of said cylinder, the openings between the arms of said spiders permitting the free discharge of the material therethrough.

Signed at Joplin, in and State of Missouri,

the county of Jasper this 7th day of September, 1905.

ALWIN F. KOEHLER. Witnesses:

Ron. W. AMOS, Mormon P. Warren. 

